Home / 21,022.24-29,012.04-11,590.84

Finding the Fourth Proportional to 21,022.24, 29,012.04 and 11,590.84

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Solution

The fourth proportional to 21,022.24, 29,012.04 and 11,590.84 is: 15,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.24 : 29,012.04 = 11,590.84 : x
  2. Step 2: Convert to fraction form
    21,022.24/29,012.04 = 11,590.84/x
  3. Step 3: Cross multiply
    21,022.24x = 29,012.04 × 11,590.84
  4. Step 4: Simplify right side
    21,022.24x = 336,273,913.71
  5. Step 5: Solve for x
    x = 336,273,913.71/21,022.24
  6. Step 6: Final answer
    x = 15,996.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.